Fluid Components International”s FlexSwitch FLT93S Flow/Level/Temperature Switch performs monitoring, controlling and alarming of flowrates or levels of critical fluids such as foams, emulsion layers, liquids and slurries. A rugged industrial design and housing provide reliability and long service life under the harsh plant environments in chemical refining, waste treatment and other industries. The switch is a dual-function, insertion-style instrument that offers either flow/temperature sensing or level/temperature sensing in a single device. The switch measures and monitors flow or level and temperature simultaneously. Unlike density displacers, which are often used for level and interface control, the switch relies on the specific heat transfer properties of the media to identify the interface of different products. With thermal-dispersion sensing capability, the switch monitors the interface of products with similar densities for highly reliable control in separation tanks and other vessels. The switch operates over a setpoint range in water from 0.01 to 0.5 FPS (0.003 to 0.9 MPS). Level/interface accuracy is +/-0.25 inch (+/-6.4 mm), and measurement repeatability is +/-0.125 inch (+/-3.2 mm). The standard model withstands operating temperatures from -40 F to 350 F (-40 C to 177 C), and an optional configuration is available for temperatures from -100 F to 850 F (-73 C to 454 C).